Robert smith



B. SMITH. UATGH BASIN TOP AND TRAP.

b N0.44O,067. Patented N0v.4,1s90.

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fig 1%MI/QMW 2;%W 6/ W UNITED STATES PATENT OFFICE.

ROBERT SMITH, OF TORONTO, CANADA, ASSIGNOR OF ONE-HALF TO GEORGE W.STRANGE, OF SAME PLACE.

CATCH-BASIN TOP AND TRAP.

SPECIFICATION forming part of Letters Patent No. 440,067, dated November4, 1890. Application filed July 26, 1890. $erial No. 360,060. (Nomodel.)

To all whom it may concern.-

Be it known that I, ROBERT SMITH, inspector, of the city of Toronto, inthe county of York,in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in a Combined Culvert Top and Trap;and I hereby declare the following to be a full, clear, and exactdescription of the same.

The objectof this invention is to devise a combined culvert top andtrap, by means of the use of which the secondary chamber connectedwiththe sewer and the trap leading thereunto may be entirely dispensed with,and which will at the same time prevent any and all effiuvia or noxiousgases reaching the upper world and poisoning the atmosphere; and itconsists in the improved construction and combination of parts, ashereinafter more fully described in the specification, and pointed outin the claims.

In the drawings, Figure l is a sectional view of the combined culverttop and trap. Fig. 2 is a perspective view of the same. Fig. 3 is anenlarged detail View of the hinging device.

Like letters of reference refer to like parts throughout thespecification and drawings.

The combined culvert top and trap consists, essentially, as shown in thedrawings, of a rectangular-shaped bottomless box A, provided with aremovable lid B and a waterchute C. It will be noticed by reference toFigs. 1 and 2 that this water-chute O has an outwardly-extending lip c,fitted with gratings d. The inner face of the chute C is formed into avalve-seat d for the valve D. This valve D is provided with femalehinges E, through which extend pivot-points a. These pivot-points 6'rest on a countersunk bearing-surface f in the male hinge or spindle F,which passes through and is made somewhat smaller than the female hingesE. In operating the valve D the only portions of the hinges that touchor upon which there is any friction are the pivot-points e on thebearingsurfaces f. Thus the valve D, having little or no friction in itsoperation, will readily open when the pressure is from the chute O, andwill tightly close when the said pressure is removed, thus permittingthe water coming down the chute to pass into the culvertwell G, andafter it is passed to tightly close and prevent any and all effluvia ornoxious gases arising from the decomposing matter in the said well fromreaching the upper world and poisoning the atmosphere. Thus it will bereadily seen that the combined culvert top and trap, beside entirelydispensing with the secondary chamber and trap leading thereinto, is ofgreat advantage from a sanitary standpoint.

The lip 0, extending outward from the front of the box A, fitted withgratings a, is placed in the gutter slightly below the level of theroadway and effectually prevents any water flowing past the culvert-topand causing a flood. A flange 1) extends partially around the outside ofthe body of the box A, and is for the purpose of supporting the box inits bed.

Having thus fully described my invention,

what I claim as new, and desire to secure by 7 Letters Patent, is

1. A culvert-top consisting of a suitablyshaped bottomless box havingaremovable lid B and a chute O, provided with an outwardly-extending lipc, fitted with gratings d, substantially as and for the purpose setforth.

2. A culvert-top consisting of a suitablyshaped bottomless box A, havinggratings a, in its front side, a removable lid B, and a chute O, havingan outwardly-extending lip c, fitted with gratings d, substantially asand for the purpose set forth.

3. The combination of a culvert-top consisting of a suitably-shapedbottomless box A, having gratings a in its front side, and a removabletop B, with a chute O, fitted with a valve-seat d, and a valve D,provided with female hinges E, through which extend pivots e, havingpoints 6', which rest upon the countersunk bearing-surfaces fof the malehinge F, substantially as and for the purpose set forth.

4. A hinge consisting of a female part- E, fitted With a pivot e, and amale part F, fitted with a countersunk bearing-surface f, substantiallyas and for the purpose set forth.

5. A combined culvert top and trap con- IQO sisting of a suitably-shapedbottomless box seat d, substantially as and for the purpose A, having aremovable lid B, and a chute (3, set forth. provided with anoutwardly-extending lip a, Toronto, July 11, 1890.

having gratings a, in combination with a 5 valve D, provided with femalehinges E, fitted ROBERT SMITH with pivots 6, male hinges F, having coun-In presence of tersunk bearing-surfaces f, on which the CHARLES H.RIOHES, points e of the pivots work, and the valve- JNO. OOUSINS, Jr.

